Respond to keepalives/global requests

include/libssh/session.h

@@ -118,5 +118,5 @@ struct ssh_session_struct {
 };
 
 int ssh_handle_packets(ssh_session session);
-
+void ssh_global_request_handle(ssh_session session);
 #endif /* SESSION_H_ */

libssh/packet.c

@@ -693,6 +693,9 @@ void packet_parse(ssh_session session) {
       case SSH2_MSG_CHANNEL_OPEN:
         message_handle(session,type);
         return;
+      case SSH2_MSG_GLOBAL_REQUEST:
+        ssh_global_request_handle(session);
+        return;
       default:
         ssh_log(session, SSH_LOG_RARE, "Received unhandled packet %d", type);
     }
@@ -779,6 +782,7 @@ static int packet_wait2(ssh_session session, int type, int blocking) {
         ssh_log(session, SSH_LOG_PACKET, "received disconnect packet");
         leave_function();
         return SSH_ERROR;
+      case SSH2_MSG_GLOBAL_REQUEST:
       case SSH2_MSG_CHANNEL_WINDOW_ADJUST:
       case SSH2_MSG_CHANNEL_DATA:
       case SSH2_MSG_CHANNEL_EXTENDED_DATA:

libssh/session.c

@@ -32,7 +32,8 @@
 #include "libssh/packet.h"
 #include "libssh/session.h"
 #include "libssh/misc.h"
-
+#include "libssh/ssh2.h"
+#include "libssh/buffer.h"
 #define FIRST_CHANNEL 42 // why not ? it helps to find bugs.
 
 /** \defgroup ssh_session SSH Session
@@ -409,5 +410,32 @@ int ssh_get_version(ssh_session session) {
   return session->version;
 }
 
+
+/**
+ * @internal
+ * @handle a SSH_MSG_GLOBAL_REQUEST packet
+ * @param session the SSH session
+ */
+void ssh_global_request_handle(ssh_session session){
+  ssh_string type;
+  char *type_c;
+  uint32_t needreply;
+  type=buffer_get_ssh_string(session->in_buffer);
+  buffer_get_u32(session->in_buffer,&needreply);
+  if(type==NULL)
+    return;
+  type_c=string_to_char(type);
+  if(!type_c)
+    return;
+  ssh_log(session, SSH_LOG_PROTOCOL,
+      "Received SSH_GLOBAL_REQUEST %s (wantreply=%d)",type_c,needreply);
+  SAFE_FREE(type_c);
+  string_free(type);
+  if(needreply != 0){
+    buffer_add_u8(session->out_buffer,SSH2_MSG_REQUEST_FAILURE);
+    packet_send(session);
+  }
+}
+
 /** @} */
 /* vim: set ts=2 sw=2 et cindent: */